The Mastic Doctor team standing beside their branded vans outside an office building
East Sussex · England

Mastic contractors in Ashburnham

Mastic packages for new-build and refurbishment projects in Ashburnham. CHAS accredited and fully insured, with a 12-month guarantee.

  • Sanitary sealant damaged by following trades
  • Mastic snags holding up handover
  • Window and door perimeters that won’t pass inspection
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic for businesses in Ashburnham

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Construction mastic in Ashburnham

Buyers, tenants and clients notice sealant lines long before they notice the structure. A smeared bead round a window or a gap behind a worktop ends up on the snag list and clearing them late eats into the handover window. We seal so the snag list stays short, area by area through the programme. If you are dealing with existing joints on a refurb that need cutting out and resealing and window and door perimeters that won’t pass inspection, we can put it right, whatever the surface. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Ashburnham is the same: the right product in a properly prepared joint.

Construction in and around smaller places such as Ashburnham is often barn conversions, small groups of houses or extensions to halls and schools. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

Place
Ashburnham (TN33)
Region
East Sussex
Cover
12 months on our workmanship
Price
A fixed quote before we start
Call
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

When it isn’t the sealant

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Designing joint widths or choosing the specification (that sits with the designer)
  • Damage to finishes by other trades after we’ve sealed
  • Frames fitted out of tolerance

Not sure which it is? You can phone 01277 525 020 or send photos by email and we’ll tell you honestly.

Surfaces we seal

  • Window and door perimeters
  • Sanitary and kitchen joints
  • Brick and block movement joints
  • Cladding and panel joints
  • Floor and skirting junctions
  • Internal decorators’ caulk

Diagnose, treat, sign off

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme, and our waste is bagged and taken away as we go. Jobs in and around smaller places like Ashburnham are normally planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.

  1. First we take quantities off the drawings and read through the specification.
  2. You receive a fixed quote listing scope, products and phasing.
  3. You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  5. Each joint is prepared, backed to depth and sealed in the product the specification names.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Before we start on site

  • Share the asbestos register for older buildings
  • Warn occupants and staff about the work
  • Confirm the product named in the specification

Getting a fixed quote

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to call 01277 525 020 or email a schedule or drawings.

Get a quick quote

Related advice

Ashburnham: questions and answers

Can you take on a job at a hospital such as Bexhill Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Can the mastic package for our job in Ashburnham follow the site programme?

Yes. Send the programme and drawings, and we will plan the mastic to suit the stages. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.

Are you fully insured?

Yes. Our insurance certificate can be sent alongside the quote.

Do you do fire-rated sealing on new builds?

Where it’s specified, yes to the tested detail. If the detail calls for collars, wraps or batts instead, we’ll tell you.

What guarantee comes with a mastic package?

It’s backed by our 12-month guarantee. Protecting sealed areas from following trades helps avoid damage.

How do you choose the sealant?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

Can the building stay open while you work?

Usually, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Leave it or put it right?

Getting the mastic contractor involved early pays off. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification rather than at the snagging stage. Leave it late and they turn up on the snag list. One visit to deal with every failing joint makes more sense than several trips to a place like Ashburnham. Photos of every joint help us quote for the whole job.

We don’t publish prices, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.

Why clients in Ashburnham choose us

  • Constructionline member
  • Matching to RAL references, product permitting
  • Commercial sealant work since 2005
  • Fixed quotes based on photographs, drawings or a visit

Read how commercial sealant jobs are priced or how we’re accredited.

Surface by surface

Kitchens and utility areas

On commercial kitchen fit-outs, hygienic sealants are often specified. We follow the specification and seal to a smooth, cleanable finish.

Bathrooms, en suites and washrooms

In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line and baths are loaded where appropriate before sealing.

Building owners, agents and FMs in Ashburnham

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.

For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.

Construction mastic in Ashburnham: the local picture

Ashburnham is about 46 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes. Rainfall across the South East, Ashburnham included, is lower than in many parts of the UK. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.

Sites around Ashburnham get mastic sealed to the drawings and the programme, nothing improvised. For a contractor working at a hospital such as Bexhill Hospital, which lies south-east of Ashburnham, perimeter and facade sealing is planned around patients and deliveries.

Ashburnham is about 5 miles north-west of Bexhill-on-Sea, in East Sussex. Our applicators travel to Ashburnham for work on mastic packages, handled exactly as we handle every other area. 308 places across East Sussex fall within our area, Ashburnham among them. Brighton is covered too, around 24 miles from Ashburnham.

Commercial sites across TN33 are covered. If your site is on Church Road and The Forge or close by, send details and we will quote for mastic packages. Just outside Ashburnham, we also work in Brownbread Street (1 mile west), The Pound (1 mile south), Bodle Street Green (2 miles west), Wood's Corner (3 miles north-west) and Dallington (3 miles north-west). Bigger towns within reach include Eastbourne (10 miles south-west), Hastings (8 miles east), Bexhill-on-Sea (5 miles south-east), Hailsham (7 miles south-west), Crowborough (14 miles north-west) and St Leonards (8 miles south-east).

Around Ashburnham

Recent enquiries here include premises near Ashburnham Park and The Ash Tree Inn, among other places. Ashburnham’s nearest station is Battle station, roughly 4.4 miles east. A little further out are Old Castle (3.1 miles north-west) and Battle Museum of Local History (3.9 miles east). The countryside around Ashburnham includes Senlac Hill.

Map of Ashburnham © OpenStreetMap contributors

Looking after the joints

For the best life from the joints:

  • Get the mastic subcontractor involved early in the programme
  • Record the products used in the O&M file
  • Don’t schedule sealing before decorators and flooring are done
  • Ask cleaners to use soft cloths around fresh sealant

If a joint is damaged after sealing, flag it early. Snags can be picked up in a planned close-out visit.

A missed perimeter seal on one window can wet the reveal and the plaster inside. On a new building that means remedial work after decorating. Checking perimeters before internal finishes go on avoids it.

Accreditations

Trusted. Accredited. Insured.